Click to expand Tap to zoom VICON SECURITY PROXIMITY READER VAX-300R by Vicon Security SKU VAX-300R 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to Quote PROXIMITY READER; designed to be mounted to metal door and window frames (mullion); reads standard 125kHz Proximity cards; read range up to 4 in. (102 mm)